Companion Cat IBD Advanced Diagnosis

Advanced diagnostic approaches for feline IBD including endoscopy, biopsy, and biomarker testing enable more targeted treatment and better welfare outcomes.

Key Facts

Endoscopic biopsy differentiates IBD subtypes including lymphocytic, eosinophilic, and neutrophilic forms
Distinguishing IBD from small cell lymphoma requires immunohistochemistry which may require additional biopsy material
Serum cobalamin and folate levels indicate small intestinal versus large intestinal disease
Ultrasound identifies intestinal wall thickening and lymph node changes suggesting disease activity
CT colonography is emerging as an alternative to endoscopy in some situations

Welfare Considerations

Advanced diagnosis of feline IBD requires invasive procedures that cause short-term welfare costs but enable targeted treatment that provides long-term welfare benefit. The welfare cost of endoscopy under anaesthesia is small compared to the benefit of avoiding months of empirical treatment that may be ineffective. Accurate subtype diagnosis enables the most appropriate treatment selection from the first treatment choice.

What You Can Do

Seek specialist gastroenterology referral for cats not responding to initial IBD treatment
Request immunohistochemistry alongside routine histology for complete biopsy diagnosis
Monitor response to treatment systematically using body weight and clinical signs